Commercial Roofing Contractors
The Future of Roofing is Seamless®
We Provide High-Quality Commercial Roofing Services
Experience roofing excellence with us. We specialize in reliable solutions for commercial roofing projects, including expert liquid-applied waterproofing and commercial roof replacement.
We specialize in the seamless application of spray polyurethane foam (SPF) for your commercial roofing needs.
Spray Foam Roofing
We offer solutions for various commercial roofing needs, using materials like EPDM, TPO, and PVC.
Single-Ply Roofing
We deliver customized protection for your roofing investment. From silicone and acrylic to urethane and polyurea coatings
Roof Coatings
Our coatings provide a robust layer, ensuring longevity and reliability for surfaces in various industries.
Industrial Coatings
Our efficient rock vacuum solutions ensure a thorough process, enhancing and safeguarding your roofing investment.
Ballast Removal
A Commercial roofing company providing you with the right solutions
Strong Contractors Inc. is a commercial roofing contractor specializing in liquid-applied membranes, leading the way as pioneers in the industry with a commitment to innovation, quality, and seamless roofing solutions.
Why Choose Strong Contractors Inc.
We stand out as your premier choice among commercial roofing companies in Denver, where excellence, innovation, customer satisfaction, industry recognition, and community engagement converge to deliver unparalleled roofing solutions.
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When it comes to commercial roofing, there is no one-size-fits-all solution. Every roof has its own unique challenges and characteristics, such as shape, size, slope, client budget, environmental conditions, and owner needs. It is important to approach each roofing task with a tailored strategy, recognizing the individual requirements and complexities rather than applying a uniform solution. This underscores the importance of choosing a contractor that can deliver a customized roof system that fits your specific needs.
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Seamless roofs have fewer leaks because they lack joints or seams, which are the most common points of entry for water in traditional roofing systems. When a roof is seamless, like with liquid-applied membranes, it forms a continuous, unbroken surface. This monolithic barrier doesn’t have the gaps or overlaps where water can typically seep through, reducing the likelihood of leaks and water damage and effectively safeguarding the building’s assets.
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A “No Dollar Limit” (NDL) manufacturer warranty offers comprehensive coverage without a maximum reimbursement limit for material and labor costs for repairing or replacing defective roofing. Manufacturers will only warrant materials and installation they trust, which can give you confidence in the roofing system and installer you’ve chosen. An NDL enhances building value and provides long-term protection, covering 10 to 20 years or more. With its transferability to new owners, this warranty is a wise consideration for any significant roofing investment.
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Avoiding a full roof tear-off and recoating the old roof instead can save you money, reduce waste, save time, preserve your building integrity, and enhance energy efficiency. We exhaust all other restoration options before resorting to a full roof tear-off. Only when structural integrity is compromised, or extensive damage is beyond repair, a complete tear-off may be necessary.
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Thanks to their robust, unbroken structure, monolithic seamless roofs are well-suited to withstand the varying demands of different climates. In areas prone to heavy rainfall or snow, the seamless surface provides superior water resistance, ensuring that moisture does not penetrate the building. For buildings in hot or sunny climates, these roofs can be formulated with reflective coatings that help to reduce heat absorption, enhancing indoor comfort and reducing cooling costs.
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When seeking out a roofing contractor, it’s crucial to look for those with accreditations and certifications that go beyond the basic standards. These accreditations are not just titles or certificates; they represent a commitment to excellence, quality, and continuous improvement in the roofing industry.
Awards & Certifications
We are proud to be recognized by Inc. 5000 as one of America’s fastest-growing private companies in 2024
We won Two very prestigious spray foam awards!
SPF Roof Over 40,000 Square Feet
Runner-up: Strong Contractors Inc. - South Park Elementary School
Winner: Brazos Urethane - New Orleans Convention Center
Small Business
Winner: Strong Contractors Inc. - South Park Elementary School
Strong Contractors received two prestigious spray foam awards!
SPF Roof Over 40,000 Square Feet
Runner-up: Strong Contractors Inc. - South Park Elementary School
Small Business
Winner: Strong Contractors Inc. - South Park Elementary School
"I remember peeking into the awards ceremony in 2017, dreaming that Strong Contractors would earn this coveted industry honor. This year, that dream became a reality. I couldn't be more proud that we stayed committed to the SPFA and dedicated to excellence throughout the years — it's what got us here."
- Matteo Mazzullo-Revel
GACO Top Contractor Award:
2023 & 2024
We’re proud to announce that Strong Contractors has been named a Top Contractor by Gaco for both 2023 and 2024. This award recognizes our excellence in commercial roof coatings and waterproofing.
Our recognition included an exclusive trip to Puerto Rico to network with industry peers and Gaco leadership. We’re honored to receive this award and remain dedicated to delivering top-quality service for our clients.
SPFA Accredited Roofing Contractor
Strong Contractor Inc. is the only SPFA Accredited Roofing Contractor in Colorado and one of only 15 in the country. This esteemed industry certification necessitates 8 hours of closed-book professional exams and 4 hours of field exams.
In addition, the contractor must possess over 500,000 sq. ft. of proven experience in spray polyurethane foam roofing and have an extensive safety policy that includes safety training for the entire crew.
Our clients
reviews & Testimonials
Gaco
Lauren Pagano - Senior VP
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“Your firm embodies the founding values of Gaco that continue to this day: quality, dependability, innovation, and a spirit of service for your customers. As a result, your firm earned a well-deserved spot among the top Gaco Licensed Applicators in the country.”
In 2023, STRONG CONTRACTORS demonstrated an unwavering commitment to excellence and a wealth of expertise in the commercial roofing and waterproofing industry. Your firm embodies the founding values of Gaco that continue to this day: quality, dependability, innovation, and a spirit of service for your customers. As a result, your firm earned a well-deserved spot among the top Gaco Licensed Applicators in the country.
It is with great pleasure that we present STRONG CONTRACTORS with the 2024 Gaco Top Contractor award. Your firm has achieved this designation by fulfilling the requirements as a Gaco Licensed Applicator, the total volume of Gaco products purchased/installed, as well as remaining in warranty good standing.
On behalf of the Gaco team and the entire Holcim Adhesives, Coatings, and Sealants business, I congratulate STRONG CONTRACTORS on a successful 2023. We are pleased to recognize your firm as a 2024 Gaco Top Contractor award recipient and look forward to continuing our partnership to provide superior roofing and waterproofing solutions in 2024 and beyond.
Holiday Grace Roofing
Joel Janda - Co Owner
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“The entire team at Strong is extremely well organized and efficient, producing timely and accurate estimates, assisting in supplying submittals and material selections. We won several jobs while bidding with Strong due to their goal of doing what is best for the client while keeping the prices reasonable.”
Memorial Hospital Center - UC Health
Erin Sweeney - Project Manager
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“Strong Contractors leadership is high performing, hard working, detailed oriented and committed to providing an excellent product. Their leadership qualities are portrayed throughout their entire team. They have some of the hardest working employees I have ever worked with.”
Douglas County - Colorado
Troy Bahr - Facilities Manager
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“Strong Contractors Inc. has done an outstanding job on the Douglas County Justice Center roofing project. Due to their excellent communication and organizational skills, they presented competitive bids and were awarded several projects with Douglas County.”
During this project, Strong Contractors gained access for their team of 16 by passing background checks. They stayed on schedule and within budget without any change orders.As a Project Manager, Matteo Mazzullo added value by introducing the Justice Center to a seamless system, which kept the courthouse and the county jail completely dry during the roofing job and every day since the project was completed. I can always pick up the phone and call Matteo directly anytime, knowing I can access his expertise and team.
Strong Contractors has my full support, and I recommend them as excellent roofing contractors for any government entity.
Pueblo School District 60
Phil Amaro - Trades Foreman
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“I am happy to recommend Strong Contractors Inc. and Matteo Mazzullo-Revel for the exceptional work they did on five roofing projects for Pueblo School District 60, totaling approximately 5,000 roofing squares, all carried out within a four-month period in 2024.”
Frequently Asked Questions
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Strong Contractors operates nationwide across all states in the USA, ensuring that businesses and properties throughout the country can benefit from our expertise and services.
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Yes, Strong Contractors is licensed and insured. Our commitment to professionalism and reliability extends to ensuring that all necessary licenses and insurance coverage are in place.
Additionally, our employees undergo thorough background checks, enabling us to undertake government projects with confidence and integrity.
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Commercial roof waterproofing can last anywhere from 5 to 20 years, depending on factors such as the type of waterproofing material used, the quality of installation, and environmental conditions
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Commercial roof waterproofing offers numerous benefits, including protection against water damage, extending the lifespan of the roof, preventing mold and mildew growth, improving energy efficiency, and reducing maintenance costs.
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Various materials can be used for commercial roof waterproofing, including liquid-applied membranes (such as silicone, acrylic, and polyurethane), bitumen membranes, EPDM (ethylene propylene diene terpolymer) rubber, PVC (polyvinyl chloride), TPO (thermoplastic polyolefin), and asphalt coatings. The choice of material depends on factors such as the type of roof, budget, and specific requirements of the building.